Markers at the temporary memorial, near Shanksville, Pennsylvania, honoring the passengers and crew of Flight 93, hijacked on September 11, 2001. Secretary Gale Norton visited the site to swear in the members of the Flight 93 National Memorial Federal Advisory Commission

Chicago citation style
Department of the Interior. National Business Center. Administrative Operations Directorate. Division of Employee and Public Services. Creative Communications Branch. Photographic Services. 2000. Markers at the temporary memorial, near Shanksville, Pennsylvania, honoring the passengers and crew of Flight 93, hijacked on September 11, 2001. Secretary Gale Norton visited the site to swear in the members of the Flight 93 National Memorial Federal Advisory Commission. 2003-09-11. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5616316. (Accessed September 25, 2018.)
APA citation style
Department of the Interior. National Business Center. Administrative Operations Directorate. Division of Employee and Public Services. Creative Communications Branch. Photographic Services. 2000, (2003-09-11) Markers at the temporary memorial, near Shanksville, Pennsylvania, honoring the passengers and crew of Flight 93, hijacked on September 11, 2001. Secretary Gale Norton visited the site to swear in the members of the Flight 93 National Memorial Federal Advisory Commission. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/5616316
MLA citation style
Department of the Interior. National Business Center. Administrative Operations Directorate. Division of Employee and Public Services. Creative Communications Branch. Photographic Services. 2000. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/5616316>.
Note: These citations are programmatically generated and may be incomplete.